Shareholders' Equity (Details 5) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 1,108	$ 2,766	$ 3,654
Cost of revenues [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	13	16	62
Research and development, net [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	204	435	508
Sales and marketing, net [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	166	467	963
General and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 725	$ 1,848	$ 2,121